Designing Carry Look Ahead Adder to Enrich Performance using One Bit Hybrid Full Adder

Abstract

Digital circuits also known for logic circuits ,logic circuits mainly operate on addition, subtraction, division multiplication etc.. here ,Adders are the circuits which has copious ways of smearing for todays digital era, the main grail of our design is to extrapolate and whip up low power Carry look ahead adder by taking prerequisite of one bit hybrid Full Adder circuit and comparing it with numerous adders design styles like a Full Adder designed using 10 transistors, full adder using 13 Transistors, full adder using 28 Transistors, Ripple -Carry Adder using one bit hybrid adder ,looking within of details make comparative study where in, one bit hybrid full adder is considered because of its Less Power consumption ,delay and power delay product these parameters were studied them as performance metrics, and designed Carry Look Ahead adder using one bit hybrid full adder, as Carry Look Ahead is considered it is knows as fastest adder circuits which upgrades the speed by reducing the time by determining the carry bits. calibrates each and every digit’s position either it will be propagating and generate a carry bit. Carry Look Ahead is designed and implemented in Cadence virtuoso 90nm technology with 1.0v of supply voltage.